on FOSS4G2009

These days all the open source GIS nerds are attending the FOSS4G (Free and Open Source Software for Geospatial information) congress in Sydney Australia. Because the BIM world and the GIS world are starting to overlap each other, was also present at this conference. We made a contribution by presenting the CityGML extension for BIM and it’s implementation in For those of you who missed it you can find the sheets, the extension and some example files on

Update: find everything on